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This lesson examines the effects of surface energy transfer and storage on ocean temperatures. Included are activities that introduce the use of scientific models. Students then use an energy flow computer model to track energy changes by... (View More)

Keywords: Energy flux
Audience: High school
Materials Cost: Free

This is a hands-on lab activity about seawater density. After developing a hypothesis, learners will conduct a simple investigation of density. They will discuss changes in density observed and describe how salt affects the density of water.... (View More)

Students are introduced to classification through progressive activities. Initially, the teacher models the task by classifying buttons. Students then devise a classification scheme for paper clips. Subsequent activities use objects brought from... (View More)

Keywords: Classification

This is a lesson about the Phoenix Mars Lander's science mission to use robotic technology to uncover water on Mars. Learners will be introduced to the mission and conduct some simple experiments to learn about the important properties of water and... (View More)

Audience: Elementary school
Materials Cost: 1 cent - $1 per student

This is an activity about electromagnetism. Learners will set up a simple circuit using a battery, wire, and knife switch, and then use a compass to map the magnetic field lines surrounding the wire. Next, they will add a coil of wire to the simple... (View More)

This is a lesson where learners trace the path that atoms take as they change form and move throughout the cycle of matter and compare this to the flow of energy. The lesson models scientific inquiry using the 5E instructional model and includes... (View More)

Keywords: Biology
Audience: Elementary school, Middle school
Materials Cost: Free

This is a lesson about the kinds of stars that are suitable for supporting human life. Learners will characterize stars on a HR diagram and identify the characteristics of those most suitable for supporting human life. They then explore the... (View More)

Audience: Middle school

Learners will explore the conditions required for water to be in a liquid state. They discover that temperature is the essential variable. They then explore how temperature is not a measure of heat but of the average motion of molecules of a... (View More)

Audience: Middle school

In this hands-on activity, students analyze the data on Mystery Object Cards, observe that astronomical objects have many observable properties, and discover that these properties allow scientists to categorize astronomical objects into different... (View More)

Learners will design and conduct experiments to answer the question, "how does distance and inclination affect the amount of heat received from a heat source?" They will measure heat change as a function of distance or viewing angle. From that... (View More)